A von Hamos spectrometer based on highly annealed pyrolytic graphite crystal in tender x-ray domain

Ismail, Iyas; Journel, L.; Vacheresse, Régis; Travnikova, Oksana; Marin, T.; Céolin, Denis; Guillemin, R.; Marchenko, T.; Zmerli, Moustafa; Koulentianos, Dimitris; Püttner, R.; Palaudoux, J.; Penent, F.; Simon, M.

doi:10.1063/5.0054421

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…According to the formula derivations of references [14] and [15], the following descriptions of the crystal configuration can be given:…”

Section: Design Of Configurationmentioning

confidence: 99%

“…In recent years, von Hamos Highly Annealed Pyrolytic Graphite (HAPG) mosaic crystals play important roles in x-ray emission measurements ranging from fundamental physics to various practical applications. Excellent works have been done with the cylindrically bent HAPG crystal, including the reflection efficiency measurements, the high-resolution spectrometer developments, and the ray-tracing simulations [12,[14][15][16][17]. Two conical crystals in the Hall geometry focusing rays from the Kr Heα, Lyα, and Heβ complexes onto a streak camera, and a third von Hamos crystal that time-integrates the x-ray spectra and intervening energy range provides to calibrate the streak camera signals [18].…”

Section: Introductionmentioning

confidence: 99%

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A high-resolution and high-efficiency x-ray spectrometer based on a multi-cone crystal

Shang

Wei

Gao

et al. 2023

Meas. Sci. Technol.

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A curved x-ray spectrometer based on a multi-cone crystal has been developed and demonstrated to improvethe spectra resolution and intensity e ciency measurements by our experiments and simulations. Here 6000conical rings with a single-ringe of 10 m to free the stress on the lattice planes was successfully realizedin the multi-cone crystal, which provides a much larger solid collection angle and higher resolution than theusually-used planer crystal in the general x-ray spectrometer. Thus, the experimental results show that itsspectrum resolution can reach 3.5 eV (full-width half maximum, FWHM) with the corresponding E= Eof 1420 ( 4976 eV). The intesity at the focus spot can be 110 times higher compared to that measured by aplaner cryatal spectrometer. Meanwhile, these results have also been con rmed by our numerical studies withour new developed x-ray arbitrary-surface-crystal di raction software, X-chase. Attentionaly developmenton the x-ray spectrometer is of speci c importance in the high energy density physics (HEDP), inertialcon nement fusion (ICF), and Astrophysics experiments.

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“…According to the formula derivations of references [14] and [15], the following descriptions of the crystal configuration can be given:…”

Section: Design Of Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A high-resolution and high-efficiency x-ray spectrometer based on a multi-cone crystal

Shang

Wei

Gao

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

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MOSARIX: Multi-crystal spectrometer in the tender x-ray range at SOLEIL synchrotron

Ismail,

Moussaoui,

Vacheresse

et al. 2024

Review of Scientific Instruments

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We have built and commissioned a novel standalone multi-crystal x-ray spectrometer (MOSARIX) in the von Hamos configuration based on highly annealed pyrolytic graphite crystals. The spectrometer is optimized for the energy range of 2–5 keV, but this range can be extended up to 20 keV by using higher reflection orders. With its nine crystals and a Pilatus detector, MOSARIX achieves exceptional detection efficiency with good resolving power (better than 4000), opening the door to study small cross section phenomena and perform fast in situ measurements. The spectrometer operates under a He atmosphere, which provides a flexible sample environment for measurements in gas, liquid, and solid phases.

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Proposal for measuring line profiles and angular distributions of the radiative-electron-capture transition in low-energy ion-atom collisions: Beyond the impulse approximation

2022

Phys. Rev. A

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A von Hamos spectrometer based on highly annealed pyrolytic graphite crystal in tender x-ray domain

Cited by 4 publications

References 33 publications

A high-resolution and high-efficiency x-ray spectrometer based on a multi-cone crystal

A high-resolution and high-efficiency x-ray spectrometer based on a multi-cone crystal

MOSARIX: Multi-crystal spectrometer in the tender x-ray range at SOLEIL synchrotron

Proposal for measuring line profiles and angular distributions of the radiative-electron-capture transition in low-energy ion-atom collisions: Beyond the impulse approximation

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